<!DOCTYPE html>
<html lang="en">
  <head>
      <meta charset="UTF-8">
      <title>支付页面</title>
  </head>

  <body>
    <form action="/servlet/responseExercise" method="post">
      <h1>支付页面</h1>
      用户编号：<input type="text" name="username"><br/>
      支付金额：<input type="text" name="money"><br/>
      <input type="submit" value="点击支付">
    </form>
  </body>
</html>